He has his own activewear range, lifestyle blog, model, reports for an international TV show and most recently secured the role of new host on The X Factor Australia.

But on Saturday, Jason Dundas took time out of his busy schedule to reflect on his humble past with a throwback picture, uploaded to Instagram.

Posting a black-and-white snap of himself as a cherubic tot, baby Jason looked to be in content spirits as he threw his head back and let out a giggle while the photographer, presumably his parents, snapped him in a happy mood.

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'I dreamed of connecting with the world': New X-Factor Australia host Jason Dundas shared an inspirational caption to a baby picture of himself, as the TV presenter and businessman reflected on his humble beginnings

'My story began in Penrith, where I dreamed of connecting with the world. Now I host @thexfactorau,' the 33-year-old's inspirational caption said, alongside the nostalgic snap.

He paid tribute to his home town, based in western Sydney, and also tagged Nike, which appears to be encouraging successful celebrities to take a stroll down memory lane to inspire others.

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The post comes after Jason confirmed that he would be replacing former Home And Away star, Luke Jacobz, who hosted the reality music competition for five years.

'I'm so incredibly humbled and excited to be a part of a show that provides Australians with a platform to live out their dreams as a singer,' the proud western Sydney native told the Daily Telegraph.

New gig: The post comes after Jason confirmed that he would be replacing former Home And Away star, Luke Jacobz, who hosted the reality music competition for five years

Proud! The 33-year-old Penrith boy took his mother Diane backstage during the X Factor Australia auditions, where they posed against his dressing room door

'My career as a television host all started from winning a contest so I know how life-changing a show like this can be,' the 33-year-old noted, after getting his start on MTV through a competition for a new presenter.

'It's also great that I will be home for a bit after a few years of being based in the US,' he added.

The Entertainment Tonight host's addition to the show follows news that Iggy Azalea, Guy Sebastian and Adam Lambert will serves as judges and mentors this year.

Meanwhile, Jason has returned home to Sydney after enjoying short a holiday to the tropical British Virgin Islands.

Holiday selfie: The former MTV presenter posed for a selfie against a picturesque backdrop while on holidays recently, showing off his scultped body

The holiday may be over for the Australian heart-throb, but the TV personality made sure to upload a snap of himself appreciating his picturesque surroundings.

In one picture, Jason posed for a selfie against a picturesque backdrop which featured a clear blue sky and a sandy beach.

'Holidays are over, time to get to work hosting the @xfactor_au !! Sydney here we come!' he wrote next to the shirtless image.

In another, he took a picture of the views from up high in a plane.

The former Getaway Australia correspondent has also been posting pictures of himself on-set of the singing contest as the audition process began.

Keeping fit: The hunky star regularly takes pictures of himself working out as he promotes his own fitness range

In one picture, the health enthusiast, who is studying to be a personal trainer, posed against his change room door with his mother Diane.

'Bring mum to work day,' he simply captioned the photograph.

To add to his busy schedule, Jason also runs a health venture called Dundas Fit, and previously revealed to Daily Mail Australia that his objective is to inspire the men of Australia to be fit and healthy by using the hash-tag of 'Dundas Fit'.

He also puts his sculpted body on display on the runway as a male style ambassador for retail giant David Jones.

New goals: Jason is currently studying to be a health coach at the Institute for Integrative Nutrition, and also at the National Academy of Sports Medicine